Machine for boring and filling brush-backs.



PAIENTED AUG.14, 190s.

0. GRfiNE ERG. MAGHINB FOR BORING AND FILLING BRUSH BACKS.

APPLIOA ION FILED SEPT. 28, 1905.

3 SHEETS-SHEET 1.

No. 828,473. PATENTED we'll 1, 1906.

O. GRUNEBERG. MACHINE FORBORING A N-D FILLING BRUSH BACKS.

APPLICATION FILED SEPT. 28, 1905.

3 SHEETS-SHEET 2.

PATENTBD AUG.14, me. 0. anfirmsmw, MACHINE FOR BORING AND FILLING BRUSH BAGKS.

I APPLIGATIQN FILED SEPT. 28, 1905. v v

' SHEETSSHEET3 Um TED STATES PATENT OFFICE;

MACHINE FOR BORENGAND FILLING B USH-BACKS No. 828,473. A

Application filed September 28, 1905. Serial No. 280,443.

To all whom it Duty concern:

- Be it-known that I, CARL GRUNEBERG,

. manufacturer, a subject of the Emperor of Austria-Hungary, residing at Poasony, in the Empire of AustriaeHungary, have invented certain new and useful Improvements in Machines for Boring and Filling BrushBac-ks,

of which-the following is a specification.

My invention has relation to brush-making machines; and in such connection it'relates particularly to means for supporting and moving a plurality of brush-backs in horizontal and vertical planes and for bringing the same into and out of engagement with a stationary drill and a filler,-so as to drill and fill two brush-backs at a time.

The principal objects of my invention are,

first, to provide a brush-ma'l i'n machine .with means for supporting af'pl urality of brush-backs and for manipulating the backs independently of each other in; lateral and transverse directions therein; second, to provide the machine with means for drilling holes of e ual depth in the backs and for ar- 25 ranging t e bristle-bunches in a predetermined inclined position with respect to the brush-backs; third, to so. arrange vthe actuating mechanism as to insure true and exact movements of the brush-back holders with respect to the drill and filler, and, fourth, to

- provide the machine with means for reciprocating the brush-backs and for intermittently setting thesaine.

The nature and sec e of my present invention will be more ful y understood from the following description, taken in connection with the accompanying drawings, forming part hereof, in w iich.

Figure 1 is a view illustrating, partly in vertical section and partly in side elevation, a machine for boring and filling brush-backs I and showing a support for a plurality of brush-backs, means for moving the same in vertical and horizontal planes and for shifting the support and backs and the actuating means toward and away from a stationary drill and filler, and the means for carrying the support and actuating mechanism, all embodying main features'of my said. invention.

Fig. 2 is a front elevational view of'the' niachine, partly in section. Fig. 3 isa top or plan view .of the same, and F gs i and 5 are diagrammatic views illustrating the pivotal points on which the brush-backs are swung in horizontal and vertical planes to insure Specification of Letters Patent.

varying inclined positions of the tuft with respect to the base of the brush-b drill, and 2 a filler, which are journaled horizontally in a frame A iiij'any well-known manner. Opposite the drill 1 and filler 2 is arranged a brush-back holder 4,v pivotally supported by a slide 3, havingaran'ge'of reciprocating movement in a frame; or su port 5, arranged opposite the frame A. The reciprocating movement is imparted to the slide 3 preferably by a link 6,. actuated by a lever B, pivotally secured to the support 5, which in turn is actuated by a rod C 'and lever D, oscillated by an eccentricE,arranged in the frame A, which eccentric is support-ed brush-back holder or bracket 53: by means of a bolt 7 is pivotally secured to the slide 3, and may thus be swung in a horizontal plane thereon. The brush-back holder 4 is further provided with two superposed arms v8, pivmit of an oscillating movement of the same in a vertical plane. The arinsS terminate in 'aws 9, serving to removably support the rush-back 10. To the. horizontally-movable slide or carriage 3 is secured a'shaft 11, carryin a gear-wheel. 12', serving to'impart to the s aft 11 and by the same .to cams 13, 14, and 15, secured thereto, a step by-step movement in one direction "for; a purpose to be presently fully described. The cam 13, forming. a pattern-cam, oscillates'the brushback holder ,4, and thus the arms 8 and brush-backs 10 on the bolt 7, in a horizontal 8 and brush-back 10 an oscillating movement in a vertical planes The cam in v turn backs 10, toward the drill. 1 and filler 2' to insure a uniformity-of depth of the holes drilled in theba-cks 10 irrespective of their position in the holder 4. YA roller 16' of a lever 18, pivotally secured in the point 17 to the slide 3 by means of a spring 1 9,is held in engagement with the pattern-cam'13, This lever 18 by means of a link 20 is secured tothe its bolt 7 when actuated by the cam 13,

a horizontal plane is effected. I

' In order to permit ofan adjustment of the Referring to the drawings, i 'represents a and rotated by means not shown. The

otally secured thereto in the point 8 to perplane, while the cam 14 imparts to the arms serves to limit the range of movement of the 5 slide 3, and thusthehold'er 4 and brush- 1 brush-back holder 4 and swings the same on whereby adjustment of the brush-back 10 in I brush-backs in a verticalplane 'i. in the up derstood that the movement of the lever 21 causes 'a corresponding movement of the arms 8 in a vertical plane-that is, in the direction of the width of the brush-backs 10 In order to insure a uniform depth ofthe holesin every position of the brush-backs, the cam is arranged so as to limit the advance of theslide 3 toward the drill and filler by striking against an adjustable stop 27, se-

curedi to the under side of the support or frame 5. The gear-wheel 12, which, if desired, is connected with the pattern-cam 13, is rotated with a step-by-step movement in the direction indicated by the arrow in Fig. 3 at each return of the slide3 to the extent of one tooth-that is, one hole-pit'ch whereby the cams 13, 14, and 15 are advanced to the extent of the hole-pitch. The preferred mechanism for impartin a step-by-step movement to the gear-wheel 12 consists of an arm 28, pivotally secured to the slide 3, which is provided with a pawl 30, held in engagement with the wheel 12 by a spring 29. An arm 31, rigidly secured to the slide, is connected to the pivotal arm 28 by a spring 32, and on the return of the slide 3 the arm 28,

- striking against the stop 34 by means of the pawl 30,rotates the gear-wheel 12 in the direction indicated by thearrow for the distance of one tooth. On the forward movement of the slide 3 the spring 32 brings the arm 28 into engagement with the stop 33, by which movement the pawl 30 slides over'one of the teeth of the gear-wheel 12, so that onthe next return movement of the slide 3 the gear-wheel 12 will be again turned for the distance of one toot-h. "A locking-pawl 35, arranged opposite thepawl 30,.prvents the gear-wheel 12 from being turned backward.

, The operation of the'machine is as follows:

For each type of brush-back 10 is fused, pref-:-

' erably, a separate set of camsp13, 14, and 15,

for which purpose the -cams are movably Opposite thedrill 1 an undrilled back and opposite the filler 2 a drilled back 10 is introduced into the" mounted on theshaft 11.

respective jaws 9, and the gear-whel- 12 and cams 13, 14, and 15 by means of a handvwheel 36, meshing with thegear-wheel 12, are thus brought into an initial position-.- The slide 3 by means of the links 6 is now moved toward the drill 1 and filler 2 until'the cam 15 abuts against the stop 27, during which movement the drill. -1' drills a hole in the lower brush-back and the filler 2 fills a corresponding hole in'the' upper back with the bristles, which are supplied to the filler in the usual manner. It must be borne in mind, however, that during the forward movement of the slide 3 the cam 15. only comes into op eration and limits the forward -movement thereof, while no rotary movement is imparted to the wheel 12 and cams 13 and 14; Then. the slide 3 is moved backward by means of the links 6, the ear-wheel 12 remains stationary on the sli e 3 until the arm'- 28 abuts against the stop 34 and is held against further movemennwhile the slide 3 continues its backward movement. By the arrest of the arm 28 the pawl 30 thereof r0,- tates the gear-wheel 12 for a distance of one. tooth, which movement by the intervention.

of the pattern-cam 13 is transmitted to the brush-back holder 4, swinging the same for the distance of one drill-hole to the other sidewise on the slide 3. At the same time the cam 14 is turned to such an extent that the roller 22 and the lever' 21 become dis placed, with the-result that the arms 8 are swung in a vertical plane. From the fore going description it will be understood that if the slide 3 again moves forward different spots of the brush-back are exposed to the it is possible to drill with this machine brush bodies of-anydesircd curvature and size with. the same oblique position of the tufts,; as shown in Figs-4 and 5, irrespective of the securing of the tufts by loops or anchors. The latter way of fastening the tufts is possible, as thedrill and filler are fixed while the bruslnbodiesjravel toward them. It also will be understood thatthe shape of the cam 15 is dependent upon the-curvature of the brush-back. v

The adjustment'of .the brush-backs in the present machine is directly accomplished by the cams and'by a'set of levers hinged to the brush-backholder 4, thusdoing awaywith. the toothed racks heretofore employed, thereby greatly siinplifying the construction of the machine, and also avoiding idle working, which has always been p'roductiye of un- 'reliable work as to the filling operations.

Having thus des cribed the nature and ob j'ects of my invention, what I claim as new, anddesireto'secure by Lettert latent, is-" 1. In a machine of the character described, a reciprocating slide, a brush-backholderp1v rig otally secured thereto and havingarms, cams and, means for actuating the same supportedby said slide, said cams, when actuated adaptto impart to said holder and a brush-back carried by the arms of the holder movements in horizontal and vertical planes to bring the brush-back at predetermined points into en-v gagement with a tool and a certain other ofsaid cams adapted to control the depth of hole drilled by the tool in the brush-back by limiting the movement of said slide in one direction.

3. In a machine of the character described,

a reciprocating slide, a brush-back holderhaving arms for supporting brush-backs'pivotally secured thereto, a series of cams and means for actuating the same carried by said slide, certain of said cams, when actuated, adapted respectively, to impart to said holder and its arms independent movements in ;vertical and horizontal planes so as to bring the brush-backs at predetermined points 5 into engagement with stationary tools, and. a

certain other of-said cams adapted to control the depth of hole drilled by one of the tools in certain ofthe brush-backs by limiting the movement of said slide in one direction.

4. In a machine of the character described, a reciprocating slide having a shaft, a brush back holder having arms for supporting brush-backs pivotally secured thereto, a series' of superposed cams and means'for rotating the same arranged on said'shaft, certain of said cams, when rota-ted, adapted to, respectively, impart 'to said holder and its arms inde .endent movements in vertical and horizonta planes to bring brush-backs at predetermined points into engagement With stationary tools, and a certain other of said camsadapted to control the depth of hole drilled by one of the tools i i-certain of thebrush- 5. b acks limiting the movementofsaid slide one direction." I x 5,; In amachine 'of thecharactez described,

a support, a reciprocating slidefcarried by. said support,a-shaft and a' bruslr-ba'ckholderiv and'havi'ng arms carried by said slide, a series of'sup'er ose-d-cam's and a- Wheel secured to-j said shaft, 'means carried. said slide and -means carried by said'sfupport adap'ted,wh'en said slide is moved in one direction-,torotate' said shaft and by the-same said cams-with a ste -by-s tep movement, by actuating said whee certain of said cams adapted, when rotated, to impart respectivelytozsaid'holder and its arms carrying" brush baeks, nv 'ments in horizontal and vertical plan -t bring the abrush-b'acks 'at predetermined points into engagement with tools, and means carried by said supportadap'ted to em,

gage one of said cams, to limit the forward movement of said slide and control the-depth of hole "drilled byjone of the tools in thebru'slb back. a 6:. a. 'sup'p orh 113 reciprocating slidehaving a shaf by said-support, a brush'ebacfk holder havin *armsffo'r supportingjbrushs backs pivotal y'secured thereto, a' series of I superposed cams and a heel secured to said shaft, means (pivotally secured'to said slide and means a j ustably carried .by-said sup- In amachine of the character described, a

port and adapted Whensaid slidegis moved in a one direction to rotate? with a s'tiep-by-step movement: said shaft, and-by .l h'e same said cams. by actuating said wheel,1 certain of said cams adapted to, respectively, impart to:

said holder and its arms independent vmoveiments in vertical and horizontal'planesjto bring brush-backs at predetrmined'points into engagement with tools,fand.,means;se

cured to said support andadaptedto limit the movement'of said slide byien'gaging oneof said cams, when said slide is shiftedin'a' oertam direction.

, In testimony whereof I h ig i m i the-prese c b name to this s'pecificationin tvvo subscribing-witnesses; v

GARL- GRUNEBERG. Witnesses WENZEL SINKEFURG.

A LvEs'TQ S. HOGUE. 

